State of the Art (SOTA) has added coplaner attenuators to its high-frequency product line. Wire-bondable or solderable "0303" (0.030 in. x 0.030 in. x 0.010 in.) coplaner balanced-T attenuators are available on alumina or aluminum nitride (high-power) substrates. Constructed using a high-stability thin film resistor element, these devices are available with attenuation values from 1 dB to 20 dB and suitable for high-frequency applications up to 20 GHz.

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Attenuation tolerance is less than ±0.5 dB to 12 GHz and ±1 dB to 20 GHz. VSWR is less than 1.4:1 up to 20 GHz. Performance data is available for chip mounting or mounting on Rogers 4350 boards. Wire-bondable versions have gold terminations and are RoHS compliant. Solderable versions have 60/40 SnPb over a nickel barrier. Pricing is under $1.90 in production quantities.